1. Vacuum pipeline
2. Check valve: install in the correct position; the light side faces the cylinder head cover
3. Cylinder head cover: with vacuum drive
4. Vacuum drive: on turbocharger; with turbocharger guide vane position sensor "G581"; boost pressure control
5. Vacuum control pipe: from the boost pressure limiting solenoid valve "N75" to the vacuum actuator on the turbocharger
6. Boost pressure limitation solenoid valve "N75"
7. To the brake booster
8. Check valve: install in the correct position
9. Ventilation duct
10. To the air filter housing
11. To the vacuum pump